Digital LCD PC Power Supply Tester, 20/24 Pin ATX PSU Tester with SATA & 4Pin HDD Detection

This digital LCD power supply tester is a professional maintenance tool for checking the working status of desktop ATX power supplies. It supports mainstream 20Pin and 24Pin motherboard main power interfaces, as well as 4Pin CPU auxiliary power and SATA hard disk power ports to cover full types of PC power modules.

After connecting each power cable of the PSU to the corresponding slots on the tester, the high-definition LCD screen will automatically show real-time voltage data of 3.3V, 5V, 12V and other channels. Users can quickly identify abnormal conditions such as insufficient voltage, open circuit and short circuit to avoid damaging motherboards, hard drives and graphics cards caused by faulty power supplies.

No external power adapter is needed; the tester draws power directly from the power supply under test for self-operation. The small portable structure saves storage space and can be used anytime for PC assembly inspection, second-hand power supply screening and daily hardware troubleshooting. It is an essential diagnostic tool for computer repair technicians and hardware enthusiasts.